Hi,
Thank you for reaching out to our API support team.
As per the
documentation, the login-customer-id is only required to be the MCC / manager account ID if your access to the customer account is through a manager account.
Since you are making calls or uploading conversions to manager accounts which are also accessible by the same user / email address that generated your OAuth2 credentials, then for uploading the said conversions to a specific MCC / manager account, you may opt to specify the same MCC / manager account ID as the login-customer-id in the same request.
Best regards,
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| Peter Laurence Napa Oliquino |
| Google Ads API Team |
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